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137380887449 = 13232915843719
BaseRepresentation
bin111111111110010001…
…0011111101110011001
3111010121022101011202122
41333330202133232121
54222324001344244
6143040101111025
712632266163441
oct1777442375631
9433538334678
10137380887449
1153298a25113
12227606b8475
13cc55089860
146913853121
153890d181ee
hex1ffc89fb99

137380887449 has 16 divisors (see below), whose sum is σ = 159704697600. Its totient is φ = 117116763456.

The previous prime is 137380887443. The next prime is 137380887451. The reversal of 137380887449 is 944788083731.

It is a cyclic number.

It is not a de Polignac number, because 137380887449 - 24 = 137380887433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137380887391 and 137380887400.

It is not an unprimeable number, because it can be changed into a prime (137380887443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7913189 + ... + 7930530.

It is an arithmetic number, because the mean of its divisors is an integer number (9981543600).

Almost surely, 2137380887449 is an apocalyptic number.

It is an amenable number.

137380887449 is a deficient number, since it is larger than the sum of its proper divisors (22323810151).

137380887449 is a wasteful number, since it uses less digits than its factorization.

137380887449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15843784.

The product of its (nonzero) digits is 32514048, while the sum is 62.

The spelling of 137380887449 in words is "one hundred thirty-seven billion, three hundred eighty million, eight hundred eighty-seven thousand, four hundred forty-nine".

Divisors: 1 13 23 29 299 377 667 8671 15843719 205968347 364405537 459467851 4737271981 5973082063 10567760573 137380887449